Author: Rasmus Thomsen <oss@cogitri.dev>
Reason: FF is mixing userspace net headers (net/if.h) and kernelspace ones
(linux/if.h), leading to redefinitions. We need to include net/if.h before
linux/if.h because linux/if.h has redifinition guards whereas net/if.h doesnt
Upstream: No
--- a/dom/media/webrtc/transport/third_party/nICEr/src/stun/addrs-netlink.c	2020-07-28 19:24:32.359751046 +0200
+++ b/dom/media/webrtc/transport/third_party/nICEr/src/stun/addrs-netlink.c	2020-07-28 19:24:37.856343751 +0200
@@ -31,6 +31,7 @@
 */
 
 #if defined(LINUX)
+#include <net/if.h>
 #include "addrs-netlink.h"
 #include <csi_platform.h>
 #include <assert.h>
